WDW's ticket price to the public hasn't gone up. However what they are charging ticket resellers like ParkSavers/Expedia could have. The 7 days for the price of 4 at $394.46 lasted for at least a few months but it was a promotion. They obviously could launch it again but I doubt anyone here knows for sure.
They are still advertising it as 7 days for the price of 4, which is why I was wondering if WDW's prices had gone up.